Enable Virtual Private Network (VPN) Passthrough on the RV34x Series Router

Available Languages

Download Options

PDF (40.0 KB)
View with Adobe Reader on a variety of devices
ePub (120.3 KB)
View in various apps on iPhone, iPad, Android, Sony Reader, or Windows Phone
Mobi (Kindle) (151.2 KB)
View on Kindle device or Kindle app on multiple devices

Updated:January 12, 2018

Document ID:SMB5528

Bias-Free Language

The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.

Enable Virtual Private Network (VPN) Passthrough on the RV34x Series Router

Objective

A Virtual Private Network (VPN) ensures secure connections to an underlying network infrastructure. A VPN tunnel establishes a private network that can send data securely using encryption and authentication.

Generally, every router supports Network Address Translation (NAT) in order to conserve IP addresses when you want to support several clients with the same Internet connection. However, Point-to-Point Tunneling Protocol (PPTP) and Internet Protocol Security (IPSec) VPN do not support NAT. This is where the VPN Passthrough comes in. A VPN Passthrough is a feature that allows VPN traffic generated from VPN clients connected to this router to pass through this router and connect to a VPN endpoint. The VPN Passthrough allows PPTP and IPSec VPN only to pass through to the Internet, which is initiated from a VPN client, and then reach the remote VPN gateway. This feature is commonly found on home routers that support NAT.

The objective of this document is to explain how to enable VPN Passthrough on the RV34x VPN Router Series.

Applicable Devices

RV34x Series

Software Version

1.0.02.16

Enable VPN Passthrough

Step 1. Log in to the router web-based utility and choose VPN > VPN Passthrough.

Step 2. (Optional) In the VPN Passthrough area, check the check box for IPSec Passthrough to allow IPSec tunnel to pass through the router. This option should be enabled when an IPSec VPN tunnel is in use on the router or if the router lies between two end points of an IPSec VPN tunnel.

Step 3. (Optional) Check the check box for PPTP Passthrough to allow PPTP tunnels to pass through the router. This option should be enabled when the router lies between two end points of a PPTP VPN tunnel.